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P1093 Diagnostic Trouble Code Discussion for October 2010

Fuel Rail Pressure Low During Power Enrichment

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Trouble Ticket Help Requests for DTC P1093
Help Request Posted
2005 Chevrolet Silverado 3500 6.6L No Start, Poor Idle Quality VIN: 1GBJK34285
P1093: Fuel Rail Pressure Low During Power Enrichment. This truck has an extended crank cold and a crank no start when hot. Code 1093 set. Loud knock which goes away under hard accel or when #7 injector is disabled. Also lots of smoke on accel and when #7 injector is disabled the smoke is significantly reduced. Va...
October 18, 2010